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<div id="overview"><a href="../../../../../../apidocs/net/big_oh/common/web/tags/BigOhTagSupport.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Created on Mar 10, 2008 by davidwingate</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <strong class="jxr_keyword">package</strong> net.big_oh.common.web.tags;
<a class="jxr_linenumber" name="5" href="#5">5</a>   
<a class="jxr_linenumber" name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> java.io.IOException;
<a class="jxr_linenumber" name="7" href="#7">7</a>   <strong class="jxr_keyword">import</strong> java.io.Serializable;
<a class="jxr_linenumber" name="8" href="#8">8</a>   
<a class="jxr_linenumber" name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> javax.servlet.http.HttpServletRequest;
<a class="jxr_linenumber" name="10" href="#10">10</a>  <strong class="jxr_keyword">import</strong> javax.servlet.jsp.JspException;
<a class="jxr_linenumber" name="11" href="#11">11</a>  <strong class="jxr_keyword">import</strong> javax.servlet.jsp.JspTagException;
<a class="jxr_linenumber" name="12" href="#12">12</a>  <strong class="jxr_keyword">import</strong> javax.servlet.jsp.tagext.TagSupport;
<a class="jxr_linenumber" name="13" href="#13">13</a>  <strong class="jxr_keyword">import</strong> javax.servlet.jsp.tagext.TryCatchFinally;
<a class="jxr_linenumber" name="14" href="#14">14</a>  
<a class="jxr_linenumber" name="15" href="#15">15</a>  <strong class="jxr_keyword">import</strong> net.big_oh.common.utils.RegExpHelper;
<a class="jxr_linenumber" name="16" href="#16">16</a>  
<a class="jxr_linenumber" name="17" href="#17">17</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.lang.StringUtils;
<a class="jxr_linenumber" name="18" href="#18">18</a>  
<a class="jxr_linenumber" name="19" href="#19">19</a>  
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../net/big_oh/common/web/tags/BigOhTagSupport.html">BigOhTagSupport</a> <strong class="jxr_keyword">extends</strong> TagSupport <strong class="jxr_keyword">implements</strong> TryCatchFinally, Serializable
<a class="jxr_linenumber" name="21" href="#21">21</a>  {
<a class="jxr_linenumber" name="22" href="#22">22</a>  
<a class="jxr_linenumber" name="23" href="#23">23</a>  	<strong class="jxr_keyword">public</strong> <a href="../../../../../net/big_oh/common/web/tags/BigOhTagSupport.html">BigOhTagSupport</a>()
<a class="jxr_linenumber" name="24" href="#24">24</a>  	{
<a class="jxr_linenumber" name="25" href="#25">25</a>  		doFinally();
<a class="jxr_linenumber" name="26" href="#26">26</a>  	}
<a class="jxr_linenumber" name="27" href="#27">27</a>  
<a class="jxr_linenumber" name="28" href="#28">28</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> doCatch(Throwable t) <strong class="jxr_keyword">throws</strong> Throwable
<a class="jxr_linenumber" name="29" href="#29">29</a>  	{
<a class="jxr_linenumber" name="30" href="#30">30</a>  		<strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> JspException(t);
<a class="jxr_linenumber" name="31" href="#31">31</a>  	}
<a class="jxr_linenumber" name="32" href="#32">32</a>  
<a class="jxr_linenumber" name="33" href="#33">33</a>  	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="34" href="#34">34</a>  <em class="jxr_javadoccomment">	 * Print to JspWriter, handling the IOException.</em>
<a class="jxr_linenumber" name="35" href="#35">35</a>  <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="36" href="#36">36</a>  <em class="jxr_javadoccomment">	 * @param str</em>
<a class="jxr_linenumber" name="37" href="#37">37</a>  <em class="jxr_javadoccomment">	 * @throws JspException</em>
<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>  	<strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> print(String str) <strong class="jxr_keyword">throws</strong> JspException
<a class="jxr_linenumber" name="40" href="#40">40</a>  	{
<a class="jxr_linenumber" name="41" href="#41">41</a>  		<strong class="jxr_keyword">try</strong>
<a class="jxr_linenumber" name="42" href="#42">42</a>  		{
<a class="jxr_linenumber" name="43" href="#43">43</a>  			pageContext.getOut().write(str);
<a class="jxr_linenumber" name="44" href="#44">44</a>  		}
<a class="jxr_linenumber" name="45" href="#45">45</a>  		<strong class="jxr_keyword">catch</strong> (IOException ioe)
<a class="jxr_linenumber" name="46" href="#46">46</a>  		{
<a class="jxr_linenumber" name="47" href="#47">47</a>  			<strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> JspTagException(ioe);
<a class="jxr_linenumber" name="48" href="#48">48</a>  		}
<a class="jxr_linenumber" name="49" href="#49">49</a>  	}
<a class="jxr_linenumber" name="50" href="#50">50</a>  
<a class="jxr_linenumber" name="51" href="#51">51</a>  	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment">	 * Convenience method that auto-formats an HTML line by pre-pending numTabs</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment">	 * tab characters and post-pending a new line character.</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment">	 * @param line</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  <em class="jxr_javadoccomment">	 * @param numTabs</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>  <em class="jxr_javadoccomment">	 * @throws JspException</em>
<a class="jxr_linenumber" name="58" href="#58">58</a>  <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  	<strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> printLine(String line, <strong class="jxr_keyword">int</strong> numTabs) <strong class="jxr_keyword">throws</strong> JspException
<a class="jxr_linenumber" name="60" href="#60">60</a>  	{
<a class="jxr_linenumber" name="61" href="#61">61</a>  
<a class="jxr_linenumber" name="62" href="#62">62</a>  		<strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; numTabs; i++)
<a class="jxr_linenumber" name="63" href="#63">63</a>  		{
<a class="jxr_linenumber" name="64" href="#64">64</a>  			print(<span class="jxr_string">"\t"</span>);
<a class="jxr_linenumber" name="65" href="#65">65</a>  		}
<a class="jxr_linenumber" name="66" href="#66">66</a>  
<a class="jxr_linenumber" name="67" href="#67">67</a>  		print(line);
<a class="jxr_linenumber" name="68" href="#68">68</a>  
<a class="jxr_linenumber" name="69" href="#69">69</a>  		print(<span class="jxr_string">"\n"</span>);
<a class="jxr_linenumber" name="70" href="#70">70</a>  	}
<a class="jxr_linenumber" name="71" href="#71">71</a>  
<a class="jxr_linenumber" name="72" href="#72">72</a>  	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="73" href="#73">73</a>  <em class="jxr_javadoccomment">	 * Convenience method for starting an HTML div element.</em>
<a class="jxr_linenumber" name="74" href="#74">74</a>  <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="75" href="#75">75</a>  <em class="jxr_javadoccomment">	 * @param divId</em>
<a class="jxr_linenumber" name="76" href="#76">76</a>  <em class="jxr_javadoccomment">	 * @param numTabs</em>
<a class="jxr_linenumber" name="77" href="#77">77</a>  <em class="jxr_javadoccomment">	 * @throws JspException</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  	<strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> openDiv(String divId, <strong class="jxr_keyword">int</strong> numTabs) <strong class="jxr_keyword">throws</strong> JspException {
<a class="jxr_linenumber" name="80" href="#80">80</a>  		openDiv(divId, <strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>, numTabs);
<a class="jxr_linenumber" name="81" href="#81">81</a>  	}
<a class="jxr_linenumber" name="82" href="#82">82</a>  	
<a class="jxr_linenumber" name="83" href="#83">83</a>  	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">	 * Convenience method for starting an HTML div element.</em>
<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="86" href="#86">86</a>  <em class="jxr_javadoccomment">	 * @param divId</em>
<a class="jxr_linenumber" name="87" href="#87">87</a>  <em class="jxr_javadoccomment">	 * @param cssClasses </em>
<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_javadoccomment">	 * @param cssStyles </em>
<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment">	 * @param numTabs</em>
<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">	 * @throws JspException</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>  	<strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> openDiv(String divId, String cssClasses, String cssStyles, <strong class="jxr_keyword">int</strong> numTabs) <strong class="jxr_keyword">throws</strong> JspException
<a class="jxr_linenumber" name="93" href="#93">93</a>  	{
<a class="jxr_linenumber" name="94" href="#94">94</a>  		printLine(<span class="jxr_string">""</span>, numTabs);
<a class="jxr_linenumber" name="95" href="#95">95</a>  		printLine(<span class="jxr_string">"&lt;!-- start of '"</span> + divId + <span class="jxr_string">"' div --&gt;"</span>, numTabs);
<a class="jxr_linenumber" name="96" href="#96">96</a>  		
<a class="jxr_linenumber" name="97" href="#97">97</a>  		StringBuffer divBuffer = <strong class="jxr_keyword">new</strong> StringBuffer();
<a class="jxr_linenumber" name="98" href="#98">98</a>  		divBuffer.append(<span class="jxr_string">"&lt;div id=\&quot;"</span> + divId);
<a class="jxr_linenumber" name="99" href="#99">99</a>  		divBuffer.append(StringUtils.isBlank(cssClasses) ? <span class="jxr_string">""</span> : <span class="jxr_string">" class=\&quot;"</span> + cssClasses + <span class="jxr_string">"\&quot;"</span>);
<a class="jxr_linenumber" name="100" href="#100">100</a> 		divBuffer.append(StringUtils.isBlank(cssStyles) ? <span class="jxr_string">""</span> : <span class="jxr_string">" style=\&quot;"</span> + cssStyles + <span class="jxr_string">"\&quot;"</span>);
<a class="jxr_linenumber" name="101" href="#101">101</a> 		divBuffer.append(<span class="jxr_string">"\&quot;&gt;"</span>);
<a class="jxr_linenumber" name="102" href="#102">102</a> 		printLine(divBuffer.toString(), numTabs);
<a class="jxr_linenumber" name="103" href="#103">103</a> 		
<a class="jxr_linenumber" name="104" href="#104">104</a> 		printLine(<span class="jxr_string">""</span>, numTabs);
<a class="jxr_linenumber" name="105" href="#105">105</a> 	}
<a class="jxr_linenumber" name="106" href="#106">106</a> 
<a class="jxr_linenumber" name="107" href="#107">107</a> 	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">	 * Convenience method for closing an HTML div element.</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">	 * @param divId</em>
<a class="jxr_linenumber" name="111" href="#111">111</a> <em class="jxr_javadoccomment">	 * @param numTabs</em>
<a class="jxr_linenumber" name="112" href="#112">112</a> <em class="jxr_javadoccomment">	 * @throws JspException</em>
<a class="jxr_linenumber" name="113" href="#113">113</a> <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="114" href="#114">114</a> 	<strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> closeDiv(String divId, <strong class="jxr_keyword">int</strong> numTabs) <strong class="jxr_keyword">throws</strong> JspException
<a class="jxr_linenumber" name="115" href="#115">115</a> 	{
<a class="jxr_linenumber" name="116" href="#116">116</a> 		printLine(<span class="jxr_string">""</span>, numTabs);
<a class="jxr_linenumber" name="117" href="#117">117</a> 		printLine(<span class="jxr_string">"&lt;/div&gt;"</span>, numTabs);
<a class="jxr_linenumber" name="118" href="#118">118</a> 		printLine(<span class="jxr_string">"&lt;!-- end of '"</span> + divId + <span class="jxr_string">"' div --&gt;"</span>, numTabs);
<a class="jxr_linenumber" name="119" href="#119">119</a> 		printLine(<span class="jxr_string">""</span>, numTabs);
<a class="jxr_linenumber" name="120" href="#120">120</a> 	}
<a class="jxr_linenumber" name="121" href="#121">121</a> 
<a class="jxr_linenumber" name="122" href="#122">122</a> 	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_javadoccomment">	 * Convenience method for obtaining the context path of the current web</em>
<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment">	 * application.</em>
<a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="126" href="#126">126</a> <em class="jxr_javadoccomment">	 * @return Returns the context path for the current web application.</em>
<a class="jxr_linenumber" name="127" href="#127">127</a> <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="128" href="#128">128</a> 	<strong class="jxr_keyword">protected</strong> String getContextPath()
<a class="jxr_linenumber" name="129" href="#129">129</a> 	{
<a class="jxr_linenumber" name="130" href="#130">130</a> 		<strong class="jxr_keyword">if</strong> (pageContext.getRequest() instanceof HttpServletRequest)
<a class="jxr_linenumber" name="131" href="#131">131</a> 		{
<a class="jxr_linenumber" name="132" href="#132">132</a> 			<strong class="jxr_keyword">return</strong> ((HttpServletRequest) pageContext.getRequest()).getContextPath();
<a class="jxr_linenumber" name="133" href="#133">133</a> 		}
<a class="jxr_linenumber" name="134" href="#134">134</a> 		<strong class="jxr_keyword">else</strong>
<a class="jxr_linenumber" name="135" href="#135">135</a> 		{
<a class="jxr_linenumber" name="136" href="#136">136</a> 			<strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="137" href="#137">137</a> 		}
<a class="jxr_linenumber" name="138" href="#138">138</a> 	}
<a class="jxr_linenumber" name="139" href="#139">139</a> 
<a class="jxr_linenumber" name="140" href="#140">140</a> 	<em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">	 * Uses the nameOrId parameter to derive a value that is safe to use as an</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">	 * HTML name or id attribute value.</em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">	 * </em>
<a class="jxr_linenumber" name="144" href="#144">144</a> <em class="jxr_javadoccomment">	 * @param nameOrId</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment">	 *            The candidate value for an HTML name or id atribute.</em>
<a class="jxr_linenumber" name="146" href="#146">146</a> <em class="jxr_javadoccomment">	 * @return A String that is suitable for use as an HTML name or id</em>
<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment">	 *         attribute.</em>
<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment">	 */</em>
<a class="jxr_linenumber" name="149" href="#149">149</a> 	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> String sanitizeHtmlNameOrId(String nameOrId)
<a class="jxr_linenumber" name="150" href="#150">150</a> 	{
<a class="jxr_linenumber" name="151" href="#151">151</a> 		<strong class="jxr_keyword">return</strong> RegExpHelper.replaceAll(nameOrId, <span class="jxr_string">"&#92;&#92;W"</span>, <span class="jxr_string">"_"</span>);
<a class="jxr_linenumber" name="152" href="#152">152</a> 	}
<a class="jxr_linenumber" name="153" href="#153">153</a> 
<a class="jxr_linenumber" name="154" href="#154">154</a> }
</pre>
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